NIGERIA MARITIME UNIVERSITY, OKERENKOKO, DELTA STATE.
DEPARTMENT OF MARINE ENGINEERING
SIX MONTHS REPORT ON STUDENT’S INDUSTRIAL WORK
EXPERIENCE SCHEME (SIWES)
AT
DIGITAL DREAM LIMITED
ENUGU STATE.
BY
IYIAGU SYLVERNUS TOCHUKWU
U2019/MAE/050
FEBRUARY, 2024
DEDICATION
This report is dedicated to God, my lecturers, friends and to my beloved parent Chief
Linus Iyiagu for their unconditional love and support in my life.
ACKNOWLEDGMENT
My sincere thanks and adoration to Almighty God for His protection and Guidance
over me throughout my training period.
A well-deserved acknowledgement to my parent Chief Linus Iyiagu and to my
siblings for their love and care. God bless you.
I am equally indebted to my Industrial Supervisor ENGR EBUKA and ENGR
BENNY who contributed significantly to the success of my training and imparted
my life significantly and also to the entire staffs at Digital Dream Limited. Your
outstanding helps were important and influential for me, and all I learnt were in no
doubt very valuable. A very big thank you Sirs.
I also wish to thank my SIWES coordinator Mr. Ogola Daniel and my Siwes
supervisor for their advice, time and patience and also to the lecturers of Marine
Engineering department for their efforts in grooming and preparing me for the
future.
TABLE OF CONTENTS
COVER PAGE………………………………………………………………………
TITLE PAGE………………………………………………………………………..
DEDICATION………………………………………………………………………
ACKNOWLWDGEMENT…………………………………………………………
TABLE OF CONTENTS……………………………………………………………
LIST OF TABLES………………………………………………………………......
ABSTRACT…………………………………………………………………………
CHAPTER ONE…………………………………………………………………......
INTRODUCTION…………………………….……………………………………
1.1 Introduction to SIWES program……………………………………………...
1.2 Brief history of the SIWES program……………………………………………..
1.3 Aims of Siwes…………………………………………………………………..
1.4 Objectives of Siwes………………………………………………………………
1.5 Description of Organization……………………………………………………..
1.6 Company Organogram………………………………………………………….
CHAPTER TWO…………………………………………………………………….
INDUSTRIAL EXPERIENCE…………………………………………………….
2.1 Activities at Organization…………………………..……………………………
2.2 Actual work done at the company………………………………………………
CHAPTER THREE………………………………………………………………….
NEW SKILLS ACQUIRED AND CHALLENGES ENCOUNTERED…………….
3.1 New skills acquired………….………………………………………………….
3.2 Problems Encountered….………………………………………………………
3.3 Relevance of SIWES……………………………………………………………..
CHAPTER FOUR……………………………………………………………………
CONCLUSIONS AND RECOMMENDATIONS…………………………………
4.1 Ways of Improving the SIWES program……………………………………….
4.2 Advice for future participant……………………………………………………
4.3 Advice for the SIWES Management…………………………………………….
4.4 Conclusion……………………………………………………………………….
4.5 Recommendation………………………………………………………………
4.6 Appendix……………………………………………………………………….
ABSTRACT
This a detailed report of the industrial training experience, technical skills gained
during the training period of six months at Digital Dream Limited.
The Student Industrial Work Experience Scheme established by the Federal
Government of Nigeria was aimed at exposing students of higher institutions to
acquire industrial skill and practical experience in their approved courses of study
and also to prepare the students for the industrial work situation which they are likely
to meet after graduation. This technical report is based on the experiences gained
during my six months of industrial training at Digital Dream Limited.
CHAPTER ONE
INTRODUCTION
1.1.1 INTRODUCTION
TO
STUDENT
INDUSTRIAL
WORK
EXPERIENCE SCHEME (SIWES)
The Students Industrial Work Experience Scheme (SIWES) is an acceptable skill
training program, which is part of the approved Minimum Academic Standard in the
various degree programs for all Nigerian Universities. The scheme is aimed at
bridging the existing gap between theory and practice of Sciences, Agriculture,
Medical Sciences (including Nursing), Engineering and Technology, Management,
Information and Communication Technology and other professional educational
programs in the Nigerian tertiary institutions. It is aimed at exposing students to
machines and equipment, professional work methods and ways of safeguarding the
work areas and workers in industries, offices, laboratories, hospitals and other
organizations.
1.2
BRIEF HISTORY OF SIWES
The Student Industrial Work Experience Scheme (SIWES) was initiated in 1973 by
the Industrial Training Fund (ITF). This was to upgrade the practical knowledge of
students in the Universities, Polytechnics and Colleges of Technology. It was aimed
at bridging the gap between the theoretical knowledge acquired in classes and
technical knowledge in the industry by providing students with the opportunities to
apply their educational knowledge in real work situations. It is funded by the Federal
Government and jointly coordinated by the Industrial Training Fund (ITF) and the
National Universities Commission (NUC). Over the years, SIWES has contributed
immensely to building the common pool of technical and allied skills available in
the Nigeria economy which are needed for the nation’s industrial development.
Furthermore, the place and relevance of SIWES is underscored by the fact that the
scheme contributes to improving the quality of technical skills generally available
in the pool from which employers’ source technical manpower Its gives student the
opportunity to blend the theoretical knowledge acquired in the classroom and with
practical hands-on application of knowledge required to perform work in the
industry. Also, it prepares students for employment and makes the transition from
school to the world of work easier after graduation.
1.3
AIM OF SIWES
SIWES as at time of its inception was limited to students of engineering and
Technology only, but today it covers many disciplines because of its relevance to
technology and economic development. The scheme has succeeded in establishing
a closer collaboration between institutions and industries which is essential for
preparing young people skillfully for the world of work; it helps to prepare students
to fit in, readily to employment industries and commerce. Students now become
exposed to real life situation thus supplementing the theoretical lessons in the
classroom.
1.4
OBJECTIVES OF SIWES
The industrial training funds policy document no.1 of 1973 which established
SIWES outlined the objectives of the scheme. The objectives are to:
 To prepare students for the work situation they are likely to meet after
graduation;
 To expose the students to work methods and techniques in handling
equipment and machinery that may not be available in their universities;
 To allow the transition phase from school to the world of working
environment easier and facilitate students’ contact for later job placements;
 To provide students with an opportunity to apply their theoretical knowledge
in real work situation thereby bridging the gap between theory and practice.
 Enlist and strength employers’ involvement in the entire educational process
and prepare students for employment in industry.
1.5
DESCRIPTION OF THE ORGANIZATION
Digital dream is one of the leading IT firms in Nigeria registered by corporate affairs
commission of Nigeria in September 2007 with registration No. RC 708352. The
firm is located at No.1 NWODO STREET G.R.A. ENUGU STATE.
It has equipped its office with computers, design software and all relevant working
tools to meet the increasing day to day challenges. The firm is fully computerized
and equipped with modern Engineering software and programs for successful and
timely completion of the projects. The Software includes AutoCAD, Risa3D,
RCD2000, Orion, RCC Spread Sheets, SOLIDWORKS, and other various software
for the analysis of marine engineering structural elements.
Our Mission;
a) To promote entrepreneurship through the internet and software
development
b) To promote and facilitate e-business and e-commerce in Nigeria
c) To increase the number of IT professionals through training, seminal, and
workshop
1.7 COMPANY ORGANOGRAM
MANAGING DIRECTOR
(PRINCIPAL PARTNER)
SECRETARY
I.T STUDENTS
NONPRFESSIONAL
STAFF
PROFESSIONAL STAFF
CHAPTER TWO
INDUSTRIAL EXPERIENCE
2.1
ACTIVITIES AT THE ORGANIZATION
Digital Dreams offer advanced IT solutions to companies, organizations and
institutions for efficient and effective operations. The firm stands out as one of the
top 10 ICT companies in Nigeria and is soaring high to become one of the top best
in Sub-Saharan Africa with specialty in web design, animations, software
development and ICT training. By developing world class software, we ease
institutions and organization operation. Digital dreams strive to integrate technology
in every field of life thereby promoting and enhancing institutional and
organizational efficiency.
2.2
ACTUAL WORK DONE AT THE COMPANY
CHAPTER THREE
NEW SKILLS ACQUIRED AND CHALLENGES ENCOUNTERED
New skills that I acquired at the company in the course of six (6) months include
the following;
1. AUTOCAD
2. SOLID WORKS
2.2.1 Introduction to AUTOCAD:
AutoCAD is a commercial computer-aided design (CAD) and drafting software
application. Developed and marketed by Autodesk, AutoCAD was first released in
December 1982 as a desktop app running on microcomputers with internal graphics
controllers.
Autodesk has also developed a few vertical programs:
 AutoCAD Architecture
 AutoCAD Civil
 AutoCAD Electrical
 AutoCAD ecscad
 AutoCAD Map 3D
 AutoCAD Mechanical
 AutoCAD MEP
 AutoCAD Structural Detailing, for discipline-specific enhancement.
AUTOCAD WINDOW
Once the AutoCAD 2021 window is active, it should appear as shown on the image
shown below. However, if you look at the upper left hand corner there is a button
with the letter (A) written in red. That is called the application menu of the AutoCAD
software. At the right of this button, there is the phrase “3D modeling”. This means
that the active workspace is 3D modeling.
1. Application Menu
This provides the user with file options like save, open, print.
2. Menu bar
The menu bar appears just below the title bar of the AutoCAD 2021 window. It has
such tabs as home, solid, surface, mesh and view among others for the case of 3D
workspace. If you switch to 2D Drafting & Annotation you find other tabs relevant
to that workspace. Depending on which tab you are on, you will see a collection of
tool icons just below it which are organized into panels. The entire collection of tool
icons is referred to as the ribbon. As a result the tabs on the menu bar are called
ribbon tabs.
3. Ribbon
This is a collection of tool panels representing groups of tools and features where
you will be selecting tools to draw, edit, or perform other functions. It occurs
immediately below the menu bar. Clicking on any of the tabs on the menu bar will
give you a different ribbon.
4. Drawing Area
This is a virtual sheet or modeling environment where your designs appear. It is a
boundless area on which your designs are created on a 1:1 scale regardless of their
actual life size. The drawing area is also called the canvas. In the default condition,
the drawing area will have three icons on display:
i.
The user coordinate system icon at the bottom left corner.
ii.
The cross hairs or drawing cursor which may be at any position on the screen
depending on whether the user has touched the mouse or not.
iii. The view cube at the top right corner. This is very useful in 3D drawing
because it facilitates viewing the object from multiple directions.
5. Quick Access toolbar
This includes the basic file-handling functions that you find in virtually all windows
application programs. It occurs at the immediate right of the application menu. It
carries such functions as workspace switching and title, new file, open file, save and
undo among others.
6. UCS
UCS stands for User Coordinate System. In the lower-left corner of the drawing area,
you see an L-shaped arrow. This is the UCS icon, which tells you your orientation
in the drawing. This icon becomes helpful as you start to work with complex 2D
drawings and 3D models. The X and Y arrows indicate the X- and Y-axes of your
drawing. The little square at the base of the arrows tells you that you’re in what is
called the World Coordinate System (WCS. Whenever you launch AutoCAD you
will be in the world coordinate system (WCS).
7. Command Window.
It’s located just below the drawing area. As you type in commands on the command
line, or pick commands on the ribbon panels, a message is displayed on the command
window telling you what to do next. When you issue any command it may also
display a list of options related to that command. By so doing it prompts you on your
next move. Thus it is also known as the command prompt. The command window
and the ribbon complement each other i.e. you can type commands on the command
line or click on the ribbon icons. However the command prompts that appear on the
command window prevent the user from getting confused.
8. Status Bar
The status bar is a thin strip of the AutoCAD window found between the command
window and the taskbar. To the extreme left it carries the coordinate readout which
indicates to the user the current position of the cursor. Towards the right next to the
coordinate readout is the drawing aids panel which carries such tools as object snap,
object snap tracking, dynamic UCS and polar tracking among others. These aids
assist the user in managing snap and tracking actions. They are activated or
deactivated by switching them on or off respectively. To the extreme right of the
status bar we find another panel which contains the model and layout tabs,
annotation scale and workspace switching tool (gear wheel icon) among others.
8. COMMANDS
Draw Command Tools
i.
Line: With the Line command you can draw a simple line from one
point to another.
ii.
Construction Line: The construction line commands creates a line of
infinite length which passes through two picked point.
iii.
Polyline: The Polyline command is similar to the line command
except that the resulting object may be composed of a number of segments
which form a single object.
iv.
Rectangle: The Rectangle command is used to draw a rectangle
whose sides are vertical and horizontal. The position and size of the
rectangle are defined by picking two diagonal corners.
v.
Polygon: The Polygon command can be used to draw any regular
polygon from 3 sides up to 1024 sides. This command requires four inputs
from the user, the number of sides, a pick point for the centre of the
polygon, whether you want polygon inscribed or circumscribed and then
a pick point which determines both the radius of this imaginary circle and
the orientation of the polygon. The polygon command creates a closed
polyline in the shape of the required polygon.
vi. Circle: The Circle command is used to draw circles. There are a number
of ways you can define the circle. The default method is to pick the centre
point and then to either pick a second point on the circumference of the
circle or enter the circle radius at the keyboard.
vii.
Arc:The Arc command allows you to draw an arc of a circle. There
are numerous ways to define an arc; the default method uses three pick
points, a start point, a second point and an end point.
viii.
Spline: A spline is a smooth curve that is fitted along a number
of control points. The Fit Tolerance option can be used to control how
closely the spline conforms to the control points. A low tolerance value
causes the spline to form close to the control points.
ix.
Ellipse: The Ellipse command gives you a number of different
creation options. The default option is to pick the two end points of an axis
and then a third point to define the eccentricity of the ellipse.
x.
Hatch: Hatch is used to add shaded patterns to objects and shapes.
You can pick: Pattern, Scale, Angle, Points
3. MODIFY COMMANDS
•
Offset: Create a duplicate object parallel with the original object. If
this object is a Polyline or a Circle, the duplicate shape will be transformed
inwards or outwards.
•
Copy: Copy’s one or more objects.
•
Mirror: Create a mirror
image of an
object. It is useful for
creating
symmetrical
because
you
objects
can quickly draw half the
object and then mirror it instead of drawing the entire object.
•
objects
Array: Create copies of
in
a
rectangular or polar pattern.
This is especially useful when you need to duplicate several objects at the same
distance from each other.
For rectangular arrays, you control the number of rows and columns and the distance
between each. For polar arrays, you control the number of copies of the object and
whether the copies are rotated.
•
Move: Moves one or more objects.
•
Rotate: You can rotate objects with an absolute or relative angle.
When using an absolute angle: Specify the base point and then specify the
rotation angle.
•
Scale: A scale factor greater than 1 enlarges the object. It is also
possible to scale an object using a reference object. This method scales the
object equally in all directions.
•
Trim: With the trim option objects can be shortened or lengthened
with the edges of other objects. Objects can exactly be fitted between these
objects.
•
Extend: With the extend option you can shorten or lengthen objects
to meet the edges of other objects. For example a line can be exactly fitted
between objects.
Extending an object works in the same way as trimming.
•
Fillet: You can use the fillet tool to connect two objects with an arc
with a specified radius. The inside corner is called a fillet and an outside corner
is called a round.
•
Chamfer is almost identical
to fillet, but it
will make a straight line
instead of an
arc.
•
Join: You can use the join option to combine similar objects into
one single object. It is also possible to create complete circles from arcs.
•
Explode: Polylines, hatches or blocks can be converted into
individual elements with the explode option. If you explode a polyline every
segment will become a separate line.
Some Drawings using Draw and Modify Toolbars
12. ISOMETRIC DRAWINGS
A 2D isometric drawing is a flat representation of a 3D isometric projection. This
method of drawing provides a fast way to create an isometric view of a simple
design. Distances measured along an isometric axis are correct to scale, but because
you are drawing in 2D, you cannot expect to extract other 3D distances and areas,
display objects from different viewpoints, or remove hidden lines automatically.
By using the ISODRAFT command, several system variables and settings are
automatically changed to values that facilitate isometric angles. The standard
isometric planes, called isoplanes, are as follows:
•
Right. Aligns snap and grid along 30- and 90-degree axes.
•
Left. Aligns snap and grid along 90- and 150-
Top. Aligns
snap and grid along 30- and 150-degree axes.
Choosing one of the three isoplanes automatically causes the crosshairs cursor, and
precision drawing and tracking tools to be aligned along the corresponding isometric
axes. Therefore, you can draw the top plane, switch to the left plane to draw a side,
and switch to the right plane to complete the drawing.
You can use the Isometric Drafting tool on the status bar to select the desired
isoplane.
Some Isometric Drawing
1. INTRODUCTION
SolidWorks is a solid modeling computer-aided design (CAD) and computer-aided
engineering(CAE) computer program that runs on Microsoft Windows. SolidWorks
is published by Dassault Systèmes.
The SOLIDWORKS focus on ease-of-use allows more engineers, designers and
other technology professionals than ever before to take advantage of 3D in bringing
their designs to life.
THE SOLIDWORKS MODEL
The SolidWorks model is made up of:
› Parts - 2D design (Sketch), 3D design (Features) , Part design consider in the
part design section.
›
Assemblies - Assembling of two or more than two parts consider in this
section.
›
section.
Drawings - Designing with standards is consider in the drawing
2. SOLIDWORKS USER INTERFACE
The interface is native Windows interface, and such behaves in the same manner as
other Windows applications.
Menus:
1.
It provides access to all commands that the Solid Works offers.
2.
When a menu item has a right pointing arrow, it means there is a sub-
menu associated with the choice,
3.
When a menu item is followed by a series of dots, it means that option
opens a dialog box with additional choices or information
Toolbars menus:
1.
Provide
shortcuts
enabling
to
quickly
access
the most frequently used commands.
2.
They are organized according to function and can be customized,
removed and rearranged according to your preferences.
Feature Manager Design Tree:
1.
It is located on the left side of the Solid Works Graphic window.
2.
It displays the details chronological sequence on how all the parts,
assembly and
drawing are created.
It allows access to do editing of the models.
3.
It consists of three default tabs:
1.
Feature Manager Design tree
2.
Property Manager
3.
Configuration Manager
The View Toolbar
The View toolbar provides tools for manipulating Solid Works parts, drawings, and
assemblies.
Icon
Description
Zoom to Fit
rescales the view so the entire part, drawing, or assembly is
visible.
Zoom to area
Zooms in on a portion of the view that you select by creating a
Bounding box.
1.
Place the cursor where you want the one corner of the box to be.
2.
Drag the cursor diagonally to the opposite corner of the bounding
Box.
3.
Release the cursor. The image enlarges proportionally to the size of the
bounding box.
4.
To resize the image back to fit the screen, select Zoom to Fit.
Zoom In/
dynamically changes the scale of the image.
• To enlarge the image, Press the left mouse button and drag
Out
upward.
• To reduce the image: Press the left mouse button and drag downward.
Rotate View
Dynamically turns the part or assembly image around a view
center
As you move the mouse. (Not for drawings.)
• To rotate the image on a vertical axis: Move the mouse left to right
• To rotate the image on a horizontal axis: Move the mouse up and down.
• To rotate the image diagonally: Move the mouse diagonally.
You can also use the keyboard arrow keys to rotate the image.
Pan
button
Dynamically moves the image. Press and hold the left mouse
while moving the cursor around on the screen.
Hidden
Displays only those lines that are visible at the angle the model is
Lines
rotated. Obscured lines are removed
Removed
3. 2D SKETCHING

Sketching: Sketching is the act of creating 2-dimensional profile
comprised of wire frame geometry. Sketches are used for all sketched
feature in Solid Works including:
•
Extrusions
•
Sweeps
•
Revolves
•
Lofts
Process of completing the sketches
1.
Starting a New part (It can be created in inch, millimetre or
other units)
2.
Sketches (Collections of 2D geometry that are used to create
solid features)
3.
Sketch Entities/Geometry (Types of 2D geometry such as lines,
circles and rectangles that make up the sketch)
4.
Sketch Relations (Geometric relationships such as horizontal
and vertical are applied to the sketch entities. The relations restrict the
movement of the entities)
5.
State of the sketch (Each sketch has a status that determines
whether it is ready to be used or not. The state can fully-, under- or over
defined)
6.
Sketch tools (Tools can be used to modify the sketch geometry
that has been created/ this often involves the trimming or extension of
the entities)
7.
Extruding the sketch (Extruding uses the 2D sketch to create a
3D solid feature)

Sketch Entities/Geometry:
Solid Works offers a rich variety of sketch tools for creating profile
geometry.
Sketch entity
Line
Circle
Center point Arc
3 Point Arc
Tangent Arc
Toolbar button
Geometry example___
Ellipse
Partial Ellipse
Parabola
Spline
Polygon
Rectangle
Parallelogram
Point
Centerline
4. STATUS OF A SKETCH
The most common colour codes are:
No.
Color
Diagnostic
__ Case____________
1.
Blue
Under constrained
› This is usually appears when first drawn.
› Additional dimensions or relations are required.
› Under defined sketch entities are blue (by default).
2.
Black
Fully constrained
› When more constraints and dimensions are added to the sketch – the sketch
Become completely defined.
› No additional dimensions or relationships are required.
3.
Red
Over constrained
› Adding any dimension to fully defined Would serve to over define the sketch ›
Contains conflicting dimensions or relations, or both.
Mirror creates copies of sketch elements by are mirroring them
around a centerline. When you create mirrored elements, a symmetric relation is
applied between corresponding pairs of sketch points (the ends of mirrored lines, the
centers of arcs, and so on). If you change a mirrored element, its mirror image also
changes.
Fillet creates a tangent arc at the intersection of two sketch elements,
trimming away the corner.
Offset Entities creates sketch curves offset from a selected model edge, loop,
face, external sketch curve, external sketch contour, set of edges, or set of external
sketch curves by a specified distance.
An offset entity relation is created between each original entity and the
corresponding sketch curve. If the entity changes, when you rebuild the model the
offset curve also changes. (Available in an active part or assembly document only).
Trim/Extend trims or extends a sketch element.
8. CREATING FEATURES
Features are the individual shapes that, when combined, make up the part. You can
also add some types of features to assemblies. Some features originate as sketches;
other features, such as shells or fillets, are created when you select the appropriate
menu command and define the dimensions or characteristics that you want. This
chapter describes the following:

•
Base, Boss, and Cut
•
Extrude, Revolve, Sweep, and Loft
•
Fillet/Round, Chamfer, and Draft
•
Hole - Simple and Hole Wizard
•
Shell
•
Rib
•
Dome
•
Pattern - Circular, Linear, and Mirror
•
Curve
•
Surface
Extrude:
Extrude extends the sketched profile of a feature in one or two directions as either a
thin feature or a solid feature. An extrude operation can either add material to a part
(in a base or boss) or remove material from a part (in a cut or hole).
SOLID FEATURE

THIN FEATURE
Cut:
A cut is a feature which removes material from a part
or
an assembly.
A cut may be created by Extrude, Sweep, Revolve,
Loft (from one or more sketches), or Thicken or cut
With Surface (from a surface).
or
The following table describes the End Condition tab of the Extrude Feature dialog
box and the various options for extruded bosses and cuts.
Type
Example
Blind
Description
Extends the feature from the sketch plane for a
specified distance (Depth).
Through All
Extends the feature from the sketch plane through
all existing geometry.
Up to Next
Extends the feature from the sketch plane to the
next surface, or set of surfaces, that intercepts the entire profile. The next surface
must be on the same part.
Up to Surface
selected surface.
Extends the feature from the sketch plane to the
Mid Plane
Extends the feature from the sketch plane
equally in
both directions. (Depth specifies the total depth, not the depth in each direction.)
Up to Vertex
Extends the feature from the sketch plane to a
plane that is parallel to the sketch plane and
passing through the specified vertex.

Fillet/Round:
Fillet/Round creates a rounded internal or external face on the part. You can fillet all
edges of a face, selected sets of faces, selected edges, or edge loops.
In general, it is best to follow these rules when making fillets:
•
Add larger fillets before smaller ones. When several fillets converge at
a vertex, create the larger fillets first.
•
Add drafts before fillets. If you are creating a molded or cast part with
many filleted edges and drafted surfaces, in most cases you should add the
draft features before the fillets.
•
Save cosmetic fillets for last. Try to add cosmetic fillets after most other
geometry is in place. If you add them earlier, it takes longer to rebuild the
part.
•
To enable a part to rebuild more rapidly, use a single Fillet operation
to treat several edges that require equal radius fillets. Be aware however,
that when you change the radius of that fillet, all the fillets created in the
same operation change.

Chamfer:
Chamfer creates a beveled edge on the selected edges and/or faces.

Draft:
Draft tapers faces using a specified angle to selected faces in the model, to make a
molded part easier to remove from the mold. You can insert a draft in an existing
part or draft while extruding a feature.
You can draft using either a neutral plane or a parting line.
4.8 Mirror Feature:
Mirror Feature creates a copy of a feature (or features), mirrored about a plane.
You can either use an existing plane or create a new one. If you modify the original
feature, the mirrored copy is updated to reflect the changes.

Revolved features:
Revolved Boss/Base – material added by rotating the profiles about a centerline
Revolved Cut – material removed by rotating the sketch
The Revolve parameters box provides the ability to select:
HOLLOW CYLINDER

Swept:
SOLID CYLINDER
Swept Boss/Base – material added by sweeping a profile along the path Cut Sweep
– material removed by sweeping a profile along the path
Follow path – the section
the remains at the same angle with
to the respect to the path at all times.
all times.
Keep Normal Constant –
section remains parallel
beginning section at